hydr-
1
1.
variant of
hydro-
1.
before a vowel:
hydrant.
hydr-
2
1.
variant of
hydro-
2.
before a vowel:
hydride.
British Dictionary definitions for
hydr-
hydr-
combining form
1.
a variant of
hydro-
hydro-
combining form
1.
indicating or denoting water, liquid, or fluid:
hydrolysis,
hydrodynamics
2.
indicating the presence of hydrogen in a chemical compound:
hydrochloric acid
3.
indicating a hydroid:
hydrozoan
Word Origin
from Greek
hudōr
water
hydr-
in Medicine
hydr-
pref.
Variant of
hydro-
.